Ohm Walsh Micro Talls: who's actually heard 'em?

Early on Dennis DID offer, as an option, a buffer stage to increase the input impedance of his amps but later discontinue it as he found it make no difference sonically even when using tube preamps.

Tobe,

I suppose Dennis has his reasons and motivations for doing things the way he does.

I'm not judging it, just pointing out some differences between vendor's approaches and value propositions. M-Sonic is certainly one of the vendors that sets the bar in regards to low cost.

Take a look at Audio Research's Class D amps over the years. There is a company known for tube technology that has adapted Class D as well. I tend to trust what they do when designing CLass D amps to run best with tube gear. Whatever the real end benefits when listening are, I think they tend to do things pretty right, but they will never be the lowest cost option.

But I'm with you and others who wish D-Sonic would be more open about their amps.

I suspect most of D-Sonic customers are not running tube pre-amps. They are looking for best value in an amp mostly I suspect, and are probably not too concerned about technical details relating uniquely to tube gear. D-Sonic will certainly work with tube gear, though a more detailed investigation by tube gear owner would likely identify other options with something to offer, but probably for a premium. Most folks into tubes probably are less cost conscience than the masses I would guess.

Peterr53: Perfect imaging? Is there such a thing? I never said perfect. I like the imaging I get with and without the stands. But my cement floor is uneven, and the speakers wobbled. With the bases, the center image is solid and stable, and I get less drift of left and right images, although I still get some. My room is far from perfect (it's evolving, slowly). I would like more depth, and a bid more even spread of the stage in front of me. But I did get some of both when I tried the Arion Audio RS500 amps (along with a lot of other improvements). Hence the quest for big power amps that I can afford.

Yes, I have 6' ceilings in my basement man cave (just like a real cave!). The steam pipes are boxed out and are even lower than 6' in spots. I am 5'8", so no problems, and mostly, I am sitting down anyway. It is the best place in my small home for a stereo/HT rig. There are many pros and cons, but the best is that I can crank it up to "11" at any hour and I disturb nobody; not the neighbors, not sleeping family members two flights up.